2002 GTX DI

[Huck]

Hi all,
Looking for input regarding my sea doo not staying running.Starts and idles for secs then dies.

HOURS 127

Hidtory:
Summer 2023 was having issues going into limp mode.Replace TPS and calibrated in spring 2024.After this was done started to find it was really gutless on cold start till it some what got warmed up then it ran fine.At the end of season Sept 2024 still sluggish but experience going into limp mood again run for 15 min did limp mode..Pull codes and it was showing high voltage several times.Cleared codes now won’t stay running no more then a min.

COMPLETED LUST:

COMPRESSION TEST. 120 PER CYL
NEW PLUGS
REAVES PULLED BUT STILL NEED CLEANING

 

[mikidymac]

In theory the raves should have no impact on cranking compression but I would test again with them in.

That gauge in the picture is showing about 110-112 not 120. At 110 these engines are about done.

On a DI ski, 99% of the time poor running is a fuel issue like compressor, fuel pump, air and fuel injectors....

 

[Huck]

In theory the raves should have no impact on cranking compression but I would test again with them in.

That gauge in the picture is showing about 110-112 not 120. At 110 these engines are about done.

On a DI ski, 99% of the time poor running is a fuel issue like compressor, fuel pump, air and fuel injectors....

Yes it’s low.My test consist of removal of plugs, cold engine open throttle and

 

[Huck]

Yes it’s low.My test consist of removal of plugs, cold engine open throttle and Repeat process three times with the reaves in place.

 

[Huck]

In theory the raves should have no impact on cranking compression but I would test again with them in.

That gauge in the picture is showing about 110-112 not 120. At 110 these engines are about done.

On a DI ski, 99% of the time poor running is a fuel issue like compressor, fuel pump, air and fuel injectors....

Ok I will check them out.i hear that my air compressor could of failed also.Try to figure out the test procedure

 

[WaarrEagle]

I would suggest starting with fuel pressure. It requires air pressure to be in spec to measure properly, so you can somewhat test both at the same time.

 

[Huck]

I would suggest starting with fuel pressure. It requires air pressure to be in spec to measure properly, so you can somewhat test both at the same time.

Where would I find the procedure for testing fuel pressure

 

[WaarrEagle]

Where would I find the procedure for testing fuel pressure

SeaDoo Manuals - FREE PDF Download!

 

[Huck]

SeaDoo Manuals - FREE PDF Download!

Thank you